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A bottom bracket is the bearings that the crank axle passes through, keeping the cranks turning smoothly.

Who needs a bottom bracket?

Every bike has a bottom bracket, so if your bike is creaking or feels stiff or notchy as you turn the pedals, your bottom bracket might be worn out and need replacing.

What are the choices?

It’s not so much a choice as a matter of compatibility. You need to establish whether your bottom bracket is press-fit or threaded and what size. Then you need to make sure it is compatible with your crankset. If it’s worn out, replacing like for like is often the easiest thing to do.

What should I buy with it?

You need some specialist tools both to fit and remove bottom brackets and to remove the cranks to get at it.

Anything else?

If you’re fitting a bottom bracket into a brand new frame, your frame will need some preparation first. Bottom bracket shell facing tools can be very costly, so you might need to bring it into a bike workshop to get this done.

UK Delivery Information

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE to mainland UK, regardless of the size and value.

Christmas delivery

Christmas is one of the busiest time of year for us at Tredz. We will try our best to get your products delivered before Christmas. To help you, please see our last postage dates for first class and 24 hour courier services below:

Royal Mail 1st Class – 21/12/16

TNT 24 hour – 21/12/16

DX 24 hour – 21/12/16

DPD 24 hour – 21/12/16

Any order dispatched on the 22nd & 23rd December will be delivered between 28th December and 30th December.

International Orders

Country

Small orders

Bulky orders

Large orders / bikes

Delivery (working days)

Austria

£7.99

£19.00

£140.00

3-4

Belgium

£4.99

£14.99

£120.00

3-4

Bulgaria

£14.99

£29.99

£160.00

5-7

Channel Islands

£0.00

£20.00

£25.00

2-3

Cyprus

£14.99

£29.99

£160.00

5-7

Czech Republic

£7.99

£19.00

£140.00

3-4

Denmark

£7.99

£19.00

£140.00

2-3

Estonia

£7.99

£19.00

£140.00

4-5

Finland

£7.99

£19.00

£140.00

3-4

France

£4.99

£14.99

£120.00

2-3

Germany

£4.99

£14.99

£120.00

2-3

Greece

£7.99

£19.00

£140.00

4-5

Guernsey

£0.00

£20.00

£25.00

2-3

Hungary

£7.99

£19.00

£140.00

3-4

Irish Republic

£4.99

£14.99

£120.00

2-3

Italy

£7.99

£19.00

£140.00

2-3

Jersey

£0.00

£20.00

£25.00

2-3

Latvia

£7.99

£19.00

£140.00

4-5

Lithuania

£7.99

£19.00

£140.00

4-5

Luxembourg

£4.99

£14.99

£120.00

2-3

Malta

£7.99

£19.99

£140.00

4-6

Monaco

£7.99

£19.00

£140.00

2-3

Netherlands

£4.99

£14.99

£120.00

2-3

Poland

£7.99

£19.00

£140.00

3-4

Portugal

£7.99

£19.00

£140.00

3-4

Romania

£7.99

£19.00

£140.00

4-5

Slovenia

£7.99

£19.00

£140.00

4-5

Spain

£7.99

£19.00

£140.00

2-3

Sweden

£7.99

£19.00

£140.00

3-4

International Delivery Information

Choose your delivery country:

Small items

Bulky items

Large items

Returns & Warranty

Easy Returns

It’s easy to return a product with our 365 day, hassle free returns.

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.